| Luiaondo | |
| Settlement Type: | Concejo |
| Pushpin Map: | Spain Álava#Spain Basque Country#Spain |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Basque Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Álava |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Ayala |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Ayala/Aiara |
| Area Footnotes: | [1] |
| Area Total Km2: | 7.25 |
| Population As Of: | 2023 |
| Population Footnotes: | [2] |
| Population Total: | 1225 |
| Population Density Km2: | auto |
| Elevation M: | 169 |
| Postal Code Type: | Postal code |
| Postal Code: | 01408 |
Luiaondo (Spanish; Castilian: Luyando) is a village and concejo in the municipality of Ayala/Aiara, Álava, Basque Country, Spain. It is served by a Cercanías Bilbao railway station.[3]
The, a tree which marked the boundary of the Lordship of Biscay, was located in Luiaondo. By the 18th century the tree had disappeared, and in 1730 a cross was built at its supposed location.[4]